Products N380/N330

Shift to Comfort!

The unique N330, N380 and N380SE gear hubs of the Nfinity group sets allow you to change the gear ratio between your pedals and rear wheel in one continuous motion. Just twist the shifter slightly on the handlebar and the gear ratio is changed to any ratio within its range. This is easy to do, no matter if you are freewheeling, pedaling under load or waiting at a stoplight.

Moreover, the N330 N380 are practically maintenance-free, as they are made up of self-contained systems. They are also specially designed to withstand the high torque of an eBike and can be combined with a belt drive. See for yourself—ask your bicycle dealer about NuVinci Optimized hubs. 

Features of the Nfinity 330 and Nfinity 380 :

Stepless shifting 
Effortless shifting, even under load
Greater gear ratio range than many conventional shifting systems

The Components

HUB
Controller
COMPONENTS NFINITY 330 NFINITY 380
HUB (Transmission) N330 N380
Hub colors silver, black silver, black
Spoke configurations 32 or 36 hole 32 or 36 hole
Brake configurations 6-bolt disc, rim, roller 6-bolt disc, rim, roller
Weight 2450 grams 2450 grams
Ratio range 330% nominal - 0.5 underdrive to 1.65 overdrive 380% nominal - 0.5 underdrive to 1.9 overdrive
Speed range

Infinitely Variable within Ratio Range

Infinitely Variable within Ratio Range

Drop-out

135 mm width horizontal or vertical

135 mm width horizontal or vertical

Chainline*

49.0 ± 0.5 mm  

49.0 ± 0.5 mm 
Beltline (Gates) 45.5 ± 0.5 mm   45.5 ± 0.5 mm
Beltline (Conti-Tech) 46.2 ± 0.5 mm   46.2 ± 0.5 mm  
Sprockets (chain) 16-22  teeth 16-22 teeth
Sprockets (belt) 20-28 teeth 20-28 teeth
Sprocket type Standard 9-spline, flat on one side Standard 9-spline, flat on one side
Sprocket ratio definition (chain ring teeth : sprocket teeth): Cell B
- for conventional bicycles 1.8 : 1 Minimum 1.8 : 1 Minimum
- for front drive eBikes 1.8 : 1 Minimum 1.8 : 1 Minimum
- for 250W mid drive eBikes 2.1 : 1 Minimum 2.1 : 1 Minimum
- for 350W mid drive eBikes - 2.0 : 1 Minimum
- for eBikes with Bosch Gen2 250W mid-motor 0.84 : 1 Minimum 0.8 : 1 Minimum
- for eBikes with Bosch Gen2 350W mid-motor - 0.8 : 1 Minimum
Axle Length 183 mm 183 mm
Axle Threads M10 x 1 M10 x 1
Spoke flange diameter 125.0 mm 125.0 mm
Center to left spoke flange 26.0 mm 26.0 mm
Center to right spoke flange 26.0 mm 26.0 mm
RECOMMENDED CONTROLLER C3 controller C8 controller
Mode of operation / visualization Variable Twist Grip, 3/4 Turn with indicator graphic on the housing Variable Twist Grip, 3/4 Turn with unique shift indicator display
Compatibility
N330, N380 N380, N330
CELL A C8s controller (alternative)

Mode of operation / visualization

Variable extra slip-resistant Twist Grip, 3 / 4 Turn with unique shift indicator 

Compatibility N380, N330
Cell A
* Contact Fallbrook for belt drive compatibility.

Further Product Information

View List of all downloads

Read me first

Read me first MY16
EN

Manuals

Nfinity Technical Owner Manual MY16
EN DE NL FR

N360 Owners Manual 2015
EN NL DE DA ES SV

N360 Technical Manual 2014
EN

N360 Technical Manual 2012
EN

Datasheets

N360 Datasheet 2014
EN

N 170S Datasheet 2014
EN

N171 Datasheet 2014
EN

Catalogs

N360 + Harmony Parts Catalog
EN

N171 Parts Catalog
EN

Boxed Kits

N360 Boxed Kits
EN

Experience Three Cycling Game Changers